Observation information
- date-obs: 2019-06-18
- time-obs: 16:37:55.790100000
- date-end: 2019-06-18
- time-end: 19:01:38.788700000
- obs_id: A05_180T01_9000002992
- exposure: 4866.94324943
- sourceid: Cygnus X-1
- observer: santoshv
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_180T01_9000002992_20124cztM0_level2.evt
| modeM0/AS1A05_180T01_9000002992_20124cztM0_level2_quad_clean.evt
|
| Size (bytes) | 710,444,160 | 109,774,080 |
| Size | 677.5 MB
| 104.7 MB
|
| Events in quadrant A | 4,956,210 | 697,214 |
| Events in quadrant B | 5,630,150 | 711,884 |
| Events in quadrant C | 4,585,369 | 691,334 |
| Events in quadrant D | 5,812,337 | 677,238 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19653 | 2 |
| B | 0 | 22011 | 2 |
| C | 0 | 18482 | 2 |
| D | 0 | 22662 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 162 | 0 |
| B | 0 | 162 | 0 |
| C | 0 | 162 | 0 |
| D | 0 | 162 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7858 | 525 | 6.681089% |
| B | 7858 | 602 | 7.660982% |
| C | 7858 | 288 | 3.665055% |
| D | 7859 | 419 | 5.331467% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 8623 | 7860 | 251 | 251 | 2.91% | 3.19% |  |
| B | 8623 | 7860 | 319 | 319 | 3.70% | 4.06% |  |
| C | 8623 | 7860 | 31 | 31 | 0.36% | 0.39% |  |
| D | 8624 | 7861 | 216 | 216 | 2.50% | 2.75% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 14 | 238 | 1154889 | 5833.7 | 982 | 964 | 197.8 |
| A | 14 | 237 | 10688 | 49.16 | 982 | 964 | 197.8 |
| A | 13 | 254 | 8569 | 38.45 | 982 | 964 | 197.8 |
| B | 10 | 245 | 1618372 | 8603.21 | 975 | 951 | 188.0 |
| B | 0 | 198 | 42090 | 218.82 | 975 | 951 | 188.0 |
| B | 0 | 197 | 40387 | 209.76 | 975 | 951 | 188.0 |
| C | 3 | 233 | 680152 | 3018.33 | 960 | 967 | 225.0 |
| C | 14 | 238 | 151229 | 667.77 | 960 | 967 | 225.0 |
| C | 0 | 207 | 12146 | 49.68 | 960 | 967 | 225.0 |
| D | 1 | 52 | 1682907 | 7175.83 | 967 | 939 | 234.4 |
| D | 14 | 34 | 163575 | 693.86 | 967 | 939 | 234.4 |
| D | 12 | 218 | 144351 | 611.84 | 967 | 939 | 234.4 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |